Why Exercise?
Exercise lowers
blood pressure. In fact, it may be one of the most effective
non-drug therapies for lowering blood pressure. When
researchers studied the effects of walking in people
with normal blood pressure.
They found that
a regular program of walking lowered systolic blood
pressure (the top number) by 6 to 8 mm Hg (millimeters
of mercury, the unit by which blood pressure is measured)
and diastolic pressure (the bottom number) by 7 mm Hg.
Regular exercise
lowers heart attack risk. A Finnish study involving
nearly 1,500 men revealed that men who exercised regularly
slashed their risk of heart attack by about one-third.
Exercise raises
HDL-cholesterol, the good cholesterol fraction that
helps clear bad cholesterol from the bloodstream.
Stepping up your
pace increases functional capacity, or the ability of
the heart to use oxygen more efficiently. In the long
run, this means that each physical effort requires less
work from the heart.
Staying active helps
prevent the onset and progression of type 2 or non-insulin
dependent diabetes (NIDDM), often called adult-onset
diabetes.
Exercise is a great
stress reducer. Reducing stress helps you cope with
life better, work more efficiently, and look at life's
cup as half full rather than half empty. Come to think
of it, we could even put this reason in the weight loss
ones. Some people eat out of stress, and often indiscriminately
so. Perhaps you've even done it yourself: stopped at
the bakery or vending machine after a particularly harrowing
day, hoping that a candy bar or doughnut would ease
the stress. Usually, though, eating this way just adds
to your stress level. So, change to a tried and true
way to eliminate stress (and stress-related eating):
exercise.
Exercise improves
self-esteem, mood and even the ability to think clearly.
This reason, too, could be placed back up in the list
of reasons to exercise for weight loss purposes. Putting
a positive spin on your self-esteem is an exceptionally
effective way to give yourself the encouragement you
need to keep up with the efforts of losing weight.
What Type of Exercise Should You Choose?
Many
people ask why we have to devote time to exercise today
-- unlike in so many years gone by. Just take a look
around you at the multiple and endless energy-saving
devices that allow us to conserve calories so well.
It's easy to understand why we have to make an effort
to burn calories!
As
you choose a regular form of exercise, keep enjoyment
first in mind. Do you hate exercise equipment? Then
stay away from it, and go for the walking, swimming,
and hiking you love. If you choose a type of exercise
that you enjoy, you have a better chance of sticking
with it over the long haul. Remember, you need exercise
not just to lose weight, but for several other reasons:
to keep the weight off, to make your heart and lungs
stronger and fight off the stress that is so damaging
to your health. We cannot stress enough how important
it is to really enjoy the exercise you choose.
Cross
training, or engaging in a number of different activities,
works exceedingly well to fight boredom and to keep
a wider variety of muscles strong. For instance, you
might walk briskly on Monday, Wednesday and Friday and
on Tuesday you participate in a tennis league. Thursdays
could be your heavy cleaning job day, where you knock
off at least one of the those projects on that never-ending
list. On the weekends, enjoy bicycle rides, canoeing
or ballroom dancing, or a combination of all three.
Sure doesn't sound much like work anymore, does it.
How intensely should you exercise?
As
a rough rule of thumb, you should break a sweat, but
still be able to carry on a conversation (although perhaps
a little winded). Officially speaking, you can exercise
at your target heart rate. Here's how to calculate your
target heart rate:
The heart rate at
which you should exercise most strenuously is 105 to
122.
If you have not
been exercising, it is imperative that you check with
your physician before starting to exercise. Your heart
may not be strong enough for you to exercise at this
maximum heart rate, and you may have to work up to it.
Be safe, and see your physician first!
Just to give you
some comparisons of how many calories you can burn,
we've run the numbers. The actual number of calories
you burn is dependent on your current size and gender.
Smaller women, for example, burn fewer calories than
a larger man. The numbers we present here performed
by an average for a 150 pound 40 year old woman:
- bicycling, strenuously,
226 calories burned
- walking (4 mph),
122 calories burned
- swimming, moderately
fast, 173 calories burned
- tennis, singles
played at a moderate pace, 188 calories
- golfing, carrying
your own bag, 202 calories
- gardening moderately,
145 calories